Pipeline De-Isolation & Gas Expansion
Pipeline De-Isolation & Gas Expansion
(OP)
I have been asked the following question :
Two subsea gas pipelines, both shut-in, connected via a manifold with 6" gate valve as the barrier between the two pipelines.
Pipeline 1 : Volume =500m³, Pressure = 50 Bara, Temperature = 8°C
Pipeline 2 : Volume = 60m³, Pressure = 200 Bara, Temperature = 8°C
When the gate valve is opened, the two systems will equalise in pressure, Pipeline 2 pressure will drop. What is the resulting gas temperature drop in pipeline 2?
Regards
Alph
Two subsea gas pipelines, both shut-in, connected via a manifold with 6" gate valve as the barrier between the two pipelines.
Pipeline 1 : Volume =500m³, Pressure = 50 Bara, Temperature = 8°C
Pipeline 2 : Volume = 60m³, Pressure = 200 Bara, Temperature = 8°C
When the gate valve is opened, the two systems will equalise in pressure, Pipeline 2 pressure will drop. What is the resulting gas temperature drop in pipeline 2?
Regards
Alph





RE: Pipeline De-Isolation & Gas Expansion
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RE: Pipeline De-Isolation & Gas Expansion
David
RE: Pipeline De-Isolation & Gas Expansion
Thanks Guys,
I did get temperature close to 8°C, did not seem to make sense. Thanks for the explanation david.
Regards
Al
RE: Pipeline De-Isolation & Gas Expansion